Tag: Walland Philip Vrbancic

DOS 4.1 For the Apple II

Hidden in the wings of the Apple II world has been a gem of an operating system re-build, DOS 4.1. The new DOS is a complete re-work of DOS 3.3 from the perspective of retired Raytheon engineer and former Sierra On-Line developer, Walland Philip Vrbancic. Changes in DOS 4.1 Included in this new version of […]